1 - it determines the sex if it fertilises the ovum
23
The sperm cell contains 23 chromosomes.
23 chromosones
Around 200 to 300
Each sperm cell will contain n chromosomes, which is half the number of chromosomes in the original cell.
Human cells contain forty-six chromosomes each. An exception to this is gametes (oocytes and sperm), which contain twenty-three chromosomes each.
12
The human sperm cell has 23 chromosomes. White blood cells have 46 chromosomes. Mature red blood cells to not contain a nucleus, and therefore has no chromosomes. Platelets are cell fragments and also do not contain nuclei.
If there are 13 homologues in a primary spermatocyte, that means the sperm will contain half that number since the number of chromosomes is halved during meiosis. Therefore, a sperm from that primary spermatocyte would contain 6.5 chromosomes, which is not a practical biological number because chromosomes cannot be divided in half.
A sperm cell from the same species would also contain 50 chromosomes. When an egg and sperm fuse during fertilization, the total number of chromosomes in the resulting zygote will be the sum of the chromosomes from the egg and sperm, which would be 100 in this case.
The fertilized ovum, or zygote, contains 46 chromosomes. These come from the combination of 23 chromosomes from the egg cell and 23 chromosomes from the sperm cell.
The diploid chromosome number for the orangutan is 48 (two more than man), so an orangutan sperm cell would contain 24 chromosomes.